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-rw-r--r--src/road_map.h241
1 files changed, 225 insertions, 16 deletions
diff --git a/src/road_map.h b/src/road_map.h
index ed1ad4148..d3daf9551 100644
--- a/src/road_map.h
+++ b/src/road_map.h
@@ -19,48 +19,95 @@
#include "tile_map.h"
+/** The different types of road tiles. */
enum RoadTileType {
- ROAD_TILE_NORMAL,
- ROAD_TILE_CROSSING,
- ROAD_TILE_DEPOT
+ ROAD_TILE_NORMAL, ///< Normal road
+ ROAD_TILE_CROSSING, ///< Level crossing
+ ROAD_TILE_DEPOT ///< Depot (one entrance)
};
+/**
+ * Get the type of the road tile.
+ * @param t Tile to query.
+ * @pre IsTileType(t, MP_ROAD)
+ * @return The road tile type.
+ */
static inline RoadTileType GetRoadTileType(TileIndex t)
{
assert(IsTileType(t, MP_ROAD));
return (RoadTileType)GB(_m[t].m5, 6, 2);
}
+/**
+ * Return whether a tile is a normal road.
+ * @param t Tile to query.
+ * @pre IsTileType(t, MP_ROAD)
+ * @return True if normal road.
+ */
static inline bool IsNormalRoad(TileIndex t)
{
return GetRoadTileType(t) == ROAD_TILE_NORMAL;
}
+/**
+ * Return whether a tile is a normal road tile.
+ * @param t Tile to query.
+ * @return True if normal road tile.
+ */
static inline bool IsNormalRoadTile(TileIndex t)
{
return IsTileType(t, MP_ROAD) && IsNormalRoad(t);
}
+/**
+ * Return whether a tile is a level crossing.
+ * @param t Tile to query.
+ * @pre IsTileType(t, MP_ROAD)
+ * @return True if level crossing.
+ */
static inline bool IsLevelCrossing(TileIndex t)
{
return GetRoadTileType(t) == ROAD_TILE_CROSSING;
}
+/**
+ * Return whether a tile is a level crossing tile.
+ * @param t Tile to query.
+ * @return True if level crossing tile.
+ */
static inline bool IsLevelCrossingTile(TileIndex t)
{
return IsTileType(t, MP_ROAD) && IsLevelCrossing(t);
}
+/**
+ * Return whether a tile is a road depot.
+ * @param t Tile to query.
+ * @pre IsTileType(t, MP_ROAD)
+ * @return True if road depot.
+ */
static inline bool IsRoadDepot(TileIndex t)
{
return GetRoadTileType(t) == ROAD_TILE_DEPOT;
}
+/**
+ * Return whether a tile is a road depot tile.
+ * @param t Tile to query.
+ * @return True if road depot tile.
+ */
static inline bool IsRoadDepotTile(TileIndex t)
{
return IsTileType(t, MP_ROAD) && IsRoadDepot(t);
}
+/**
+ * Get the present road bits for a specific road type.
+ * @param t The tile to query.
+ * @param rt Road type.
+ * @pre IsNormalRoad(t)
+ * @return The present road bits for the road type.
+ */
static inline RoadBits GetRoadBits(TileIndex t, RoadType rt)
{
assert(IsNormalRoad(t));
@@ -94,6 +141,13 @@ static inline RoadBits GetAllRoadBits(TileIndex tile)
return GetRoadBits(tile, ROADTYPE_ROAD) | GetRoadBits(tile, ROADTYPE_TRAM);
}
+/**
+ * Set the present road bits for a specific road type.
+ * @param t The tile to change.
+ * @param r The new road bits.
+ * @param rt Road type.
+ * @pre IsNormalRoad(t)
+ */
static inline void SetRoadBits(TileIndex t, RoadBits r, RoadType rt)
{
assert(IsNormalRoad(t)); // XXX incomplete
@@ -104,22 +158,44 @@ static inline void SetRoadBits(TileIndex t, RoadBits r, RoadType rt)
}
}
+/**
+ * Get the present road types of a tile.
+ * @param t The tile to query.
+ * @return Present road types.
+ */
static inline RoadTypes GetRoadTypes(TileIndex t)
{
return (RoadTypes)GB(_me[t].m7, 6, 2);
}
+/**
+ * Set the present road types of a tile.
+ * @param t The tile to change.
+ * @param rt The new road types.
+ */
static inline void SetRoadTypes(TileIndex t, RoadTypes rt)
{
assert(IsTileType(t, MP_ROAD) || IsTileType(t, MP_STATION) || IsTileType(t, MP_TUNNELBRIDGE));
SB(_me[t].m7, 6, 2, rt);
}
+/**
+ * Check if a tile has a specific road type.
+ * @param t The tile to check.
+ * @param rt Road type to check.
+ * @return True if the tile has the specified road type.
+ */
static inline bool HasTileRoadType(TileIndex t, RoadType rt)
{
return HasBit(GetRoadTypes(t), rt);
}
+/**
+ * Get the owner of a specific road type.
+ * @param t The tile to query.
+ * @param rt The road type to get the owner of.
+ * @return Owner of the given road type.
+ */
static inline Owner GetRoadOwner(TileIndex t, RoadType rt)
{
switch (rt) {
@@ -134,6 +210,12 @@ static inline Owner GetRoadOwner(TileIndex t, RoadType rt)
}
}
+/**
+ * Set the owner of a specific road type.
+ * @param t The tile to change.
+ * @param rt The road type to change the owner of.
+ * @param o New owner of the given road type.
+ */
static inline void SetRoadOwner(TileIndex t, RoadType rt, Owner o)
{
switch (rt) {
@@ -143,6 +225,14 @@ static inline void SetRoadOwner(TileIndex t, RoadType rt, Owner o)
}
}
+/**
+ * Check if a specific road type is owned by an owner.
+ * @param t The tile to query.
+ * @param rt The road type to compare the owner of.
+ * @param o Owner to compare with.
+ * @pre HasTileRoadType(t, rt)
+ * @return True if the road type is owned by the given owner.
+ */
static inline bool IsRoadOwner(TileIndex t, RoadType rt, Owner o)
{
assert(HasTileRoadType(t, rt));
@@ -152,8 +242,8 @@ static inline bool IsRoadOwner(TileIndex t, RoadType rt, Owner o)
/**
* Checks if given tile has town owned road
* @param t tile to check
- * @return true iff tile has road and the road is owned by a town
* @pre IsTileType(t, MP_ROAD)
+ * @return true iff tile has road and the road is owned by a town
*/
static inline bool HasTownOwnedRoad(TileIndex t)
{
@@ -194,28 +284,55 @@ static inline void SetDisallowedRoadDirections(TileIndex t, DisallowedRoadDirect
SB(_m[t].m5, 4, 2, drd);
}
+/**
+ * Get the road axis of a level crossing.
+ * @param t The tile to query.
+ * @pre IsLevelCrossing(t)
+ * @return The axis of the road.
+ */
static inline Axis GetCrossingRoadAxis(TileIndex t)
{
assert(IsLevelCrossing(t));
return (Axis)GB(_m[t].m5, 0, 1);
}
+/**
+ * Get the rail axis of a level crossing.
+ * @param t The tile to query.
+ * @pre IsLevelCrossing(t)
+ * @return The axis of the rail.
+ */
static inline Axis GetCrossingRailAxis(TileIndex t)
{
assert(IsLevelCrossing(t));
return OtherAxis((Axis)GetCrossingRoadAxis(t));
}
+/**
+ * Get the road bits of a level crossing.
+ * @param t The tile to query.
+ * @return The present road bits.
+ */
static inline RoadBits GetCrossingRoadBits(TileIndex tile)
{
return GetCrossingRoadAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y;
}
+/**
+ * Get the rail track of a level crossing.
+ * @param t The tile to query.
+ * @return The rail track.
+ */
static inline Track GetCrossingRailTrack(TileIndex tile)
{
return AxisToTrack(GetCrossingRailAxis(tile));
}
+/**
+ * Get the rail track bits of a level crossing.
+ * @param t The tile to query.
+ * @return The rail track bits.
+ */
static inline TrackBits GetCrossingRailBits(TileIndex tile)
{
return AxisToTrackBits(GetCrossingRailAxis(tile));
@@ -224,9 +341,9 @@ static inline TrackBits GetCrossingRailBits(TileIndex tile)
/**
* Get the reservation state of the rail crossing
- * @pre IsLevelCrossingTile(t)
* @param t the crossing tile
* @return reservation state
+ * @pre IsLevelCrossingTile(t)
*/
static inline bool HasCrossingReservation(TileIndex t)
{
@@ -237,9 +354,9 @@ static inline bool HasCrossingReservation(TileIndex t)
/**
* Set the reservation state of the rail crossing
* @note Works for both waypoints and rail depots
- * @pre IsLevelCrossingTile(t)
* @param t the crossing tile
* @param b the reservation state
+ * @pre IsLevelCrossingTile(t)
*/
static inline void SetCrossingReservation(TileIndex t, bool b)
{
@@ -249,8 +366,8 @@ static inline void SetCrossingReservation(TileIndex t, bool b)
/**
* Get the reserved track bits for a rail crossing
- * @pre IsLevelCrossingTile(t)
* @param t the tile
+ * @pre IsLevelCrossingTile(t)
* @return reserved track bits
*/
static inline TrackBits GetCrossingReservationTrackBits(TileIndex t)
@@ -258,66 +375,118 @@ static inline TrackBits GetCrossingReservationTrackBits(TileIndex t)
return HasCrossingReservation(t) ? GetCrossingRailBits(t) : TRACK_BIT_NONE;
}
+/**
+ * Check if the level crossing is barred.
+ * @param t The tile to query.
+ * @pre IsLevelCrossing(t)
+ * @return True if the level crossing is barred.
+ */
static inline bool IsCrossingBarred(TileIndex t)
{
assert(IsLevelCrossing(t));
return HasBit(_m[t].m5, 5);
}
+/**
+ * Set the bar state of a level crossing.
+ * @param t The tile to modify.
+ * @param barred True if the crossing should be barred, false otherwise.
+ * @pre IsLevelCrossing(t)
+ */
static inline void SetCrossingBarred(TileIndex t, bool barred)
{
assert(IsLevelCrossing(t));
SB(_m[t].m5, 5, 1, barred ? 1 : 0);
}
+/**
+ * Unbar a level crossing.
+ * @param t The tile to change.
+ */
static inline void UnbarCrossing(TileIndex t)
{
SetCrossingBarred(t, false);
}
+/**
+ * Bar a level crossing.
+ * @param t The tile to change.
+ */
static inline void BarCrossing(TileIndex t)
{
SetCrossingBarred(t, true);
}
+/** Check if a road tile has snow/desert. */
#define IsOnDesert IsOnSnow
+/**
+ * Check if a road tile has snow/desert.
+ * @param t The tile to query.
+ * @return True if the tile has snow/desert.
+ */
static inline bool IsOnSnow(TileIndex t)
{
return HasBit(_me[t].m7, 5);
}
+/** Toggle the snow/desert state of a road tile. */
#define ToggleDesert ToggleSnow
+/**
+ * Toggle the snow/desert state of a road tile.
+ * @param t The tile to change.
+ */
static inline void ToggleSnow(TileIndex t)
{
ToggleBit(_me[t].m7, 5);
}
+/** The possible road side decorations. */
enum Roadside {
- ROADSIDE_BARREN = 0,
- ROADSIDE_GRASS = 1,
- ROADSIDE_PAVED = 2,
- ROADSIDE_STREET_LIGHTS = 3,
- ROADSIDE_TREES = 5,
- ROADSIDE_GRASS_ROAD_WORKS = 6,
- ROADSIDE_PAVED_ROAD_WORKS = 7
+ ROADSIDE_BARREN = 0, ///< Road on barren land
+ ROADSIDE_GRASS = 1, ///< Road on grass
+ ROADSIDE_PAVED = 2, ///< Road with paved sidewalks
+ ROADSIDE_STREET_LIGHTS = 3, ///< Road with street lights on paved sidewalks
+ ROADSIDE_TREES = 5, ///< Road with trees on paved sidewalks
+ ROADSIDE_GRASS_ROAD_WORKS = 6, ///< Road on grass with road works
+ ROADSIDE_PAVED_ROAD_WORKS = 7 ///< Road with sidewalks and road works
};
+/**
+ * Get the decorations of a road.
+ * @param tile The tile to query.
+ * @return The road decoration of the tile.
+ */
static inline Roadside GetRoadside(TileIndex tile)
{
return (Roadside)GB(_m[tile].m6, 3, 3);
}
+/**
+ * Set the decorations of a road.
+ * @param tile The tile to change.
+ * @param s The new road decoration of the tile.
+ */
static inline void SetRoadside(TileIndex tile, Roadside s)
{
SB(_m[tile].m6, 3, 3, s);
}
+/**
+ * Check if a tile has road works.
+ * @param t The tile to check.
+ * @return True if the tile has road works in progress.
+ */
static inline bool HasRoadWorks(TileIndex t)
{
return GetRoadside(t) >= ROADSIDE_GRASS_ROAD_WORKS;
}
+/**
+ * Increase the progress counter of road works.
+ * @param t The tile to modify.
+ * @return True if the road works are in the last stage.
+ */
static inline bool IncreaseRoadWorksCounter(TileIndex t)
{
AB(_me[t].m7, 0, 4, 1);
@@ -325,6 +494,11 @@ static inline bool IncreaseRoadWorksCounter(TileIndex t)
return GB(_me[t].m7, 0, 4) == 15;
}
+/**
+ * Start road works on a tile.
+ * @param t The tile to start the work on.
+ * @pre !HasRoadWorks(t)
+ */
static inline void StartRoadWorks(TileIndex t)
{
assert(!HasRoadWorks(t));
@@ -336,6 +510,11 @@ static inline void StartRoadWorks(TileIndex t)
}
}
+/**
+ * Terminate road works on a tile.
+ * @param t Tile to stop the road works on.
+ * @pre HasRoadWorks(t)
+ */
static inline void TerminateRoadWorks(TileIndex t)
{
assert(HasRoadWorks(t));
@@ -345,6 +524,11 @@ static inline void TerminateRoadWorks(TileIndex t)
}
+/**
+ * Get the direction of the exit of a road depot.
+ * @param t The tile to query.
+ * @return Diagonal direction of the depot exit.
+ */
static inline DiagDirection GetRoadDepotDirection(TileIndex t)
{
assert(IsRoadDepot(t));
@@ -371,6 +555,15 @@ static inline DiagDirection GetRoadDepotDirection(TileIndex t)
RoadBits GetAnyRoadBits(TileIndex tile, RoadType rt, bool straight_tunnel_bridge_entrance = false);
+/**
+ * Make a normal road tile.
+ * @param t Tile to make a normal road.
+ * @param bits Road bits to set for all present road types.
+ * @param rot New present road types.
+ * @param town Town ID if the road is a town-owned road.
+ * @param road New owner of road.
+ * @param tram New owner of tram tracks.
+ */
static inline void MakeRoadNormal(TileIndex t, RoadBits bits, RoadTypes rot, TownID town, Owner road, Owner tram)
{
SetTileType(t, MP_ROAD);
@@ -384,7 +577,16 @@ static inline void MakeRoadNormal(TileIndex t, RoadBits bits, RoadTypes rot, Tow
SetRoadOwner(t, ROADTYPE_TRAM, tram);
}
-
+/**
+ * Make a level crossing.
+ * @param t Tile to make a level crossing.
+ * @param road New owner of road.
+ * @param tram New owner of tram tracks.
+ * @param rail New owner of the rail track.
+ * @param roaddir Axis of the road.
+ * @param rot New present road types.
+ * @param town Town ID if the road is a town-owned road.
+ */
static inline void MakeRoadCrossing(TileIndex t, Owner road, Owner tram, Owner rail, Axis roaddir, RailType rat, RoadTypes rot, uint town)
{
SetTileType(t, MP_ROAD);
@@ -398,7 +600,14 @@ static inline void MakeRoadCrossing(TileIndex t, Owner road, Owner tram, Owner r
SetRoadOwner(t, ROADTYPE_TRAM, tram);
}
-
+/**
+ * Make a road depot.
+ * @param t Tile to make a level crossing.
+ * @param owner New owner of the depot.
+ * @param did New depot ID.
+ * @param dir Direction of the depot exit.
+ * @param rt Road type of the depot.
+ */
static inline void MakeRoadDepot(TileIndex t, Owner owner, DepotID did, DiagDirection dir, RoadType rt)
{
SetTileType(t, MP_ROAD);